package com.itheima.service.impl;

import com.itheima.mapper.DeptMapper;
import com.itheima.mapper.EmpMapper;
import com.itheima.pojo.Dept;
import com.itheima.pojo.DeptLog;
import com.itheima.pojo.Emp;
import com.itheima.service.DeptLogService;
import com.itheima.service.DeptService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class DeptServiceImpl implements DeptService {

    @Autowired
    private DeptMapper deptMapper;
    @Autowired
    private EmpMapper empMapper;
    @Autowired
    private DeptLogService deptLogService;

    @Override
    public List<Dept> list(){
        return deptMapper.list();
    }

    @Transactional(rollbackFor = Exception.class)//spring事务管理,rollbackFor用来控制哪些异常回滚
    @Override
    public void delete(Integer id){
        try {
            deptMapper.deleteByid(id);//根据Id删除部门
            empMapper.deleteByDeptId(id);//根据部门id删除部门下的员工
        } finally {
            DeptLog deptLog = new DeptLog();
            deptLog.setCreateTime(LocalDateTime.now());
            deptLog.setDescription("执行了解散部门的操作,此次解散的是"+id+"号部门");
            deptLogService.insert(deptLog);
        }

    }

    @Override
    public void add(Dept dept) {
        dept.setCreateTime(LocalDateTime.now());
        dept.setUpdateTime(LocalDateTime.now());
        deptMapper.add(dept);
    }

    @Override
    public void update(Dept dept) {
        deptMapper.update(dept);
    }

    @Override
    public List<Dept> select(Integer id) {
        return deptMapper.select(id);
    }
}
